From 7d3655c78c99c5ef6f235f0d092b6c08853e11ff Mon Sep 17 00:00:00 2001
From: Poornima Nayar <poornimakrishnav@gmail.com>
Date: Thu, 29 Aug 2019 17:41:55 +0100
Subject: [PATCH] better exception message on content type save

---
 src/Umbraco.Core/Services/Implement/FileService.cs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/Umbraco.Core/Services/Implement/FileService.cs b/src/Umbraco.Core/Services/Implement/FileService.cs
index 79d5b35775..26a24e9b98 100644
--- a/src/Umbraco.Core/Services/Implement/FileService.cs
+++ b/src/Umbraco.Core/Services/Implement/FileService.cs
@@ -358,6 +358,11 @@ namespace Umbraco.Core.Services.Implement
                 { "ContentTypeAlias", contentTypeAlias },
             };
 
+            if (contentTypeAlias != null && contentTypeAlias.Length > 255)
+            {
+                throw new InvalidOperationException("Name cannot be more than 255 characters in length.");
+            }
+
             // check that the template hasn't been created on disk before creating the content type
             // if it exists, set the new template content to the existing file content
             string content = GetViewContent(contentTypeAlias);
@@ -365,7 +370,10 @@ namespace Umbraco.Core.Services.Implement
             {
                 template.Content = content;
             }
+
             
+
+
             using (var scope = ScopeProvider.CreateScope())
             {
                 var saveEventArgs = new SaveEventArgs<ITemplate>(template, true, evtMsgs, additionalData);